Louis Delmas returns to Lions' practice, but it's not clear whether he participated in full workout

ALLEN PARK -- Safety Louis Delmas was one of several Detroit Lions players to return to practice Monday. However, it wasn't known if he would participate in the entire workout because the media was shut out of practice.

By league mandate, NFL clubs must open their practices for the start of training camp and the first two weeks of the preseason. After that, the media policy is left up to each individual club and the Lions' policy is "get out.''

Since the media is allowed to watch the first 30 minutes of practice, we can see stretching and some individual drills. Delmas had his helmet on and took part in those drills. So did cornerback Jonathan Wade, safety Ko Simpson, defensive end Jared DeVries and linebacker Vinny Ciurciu.

Again, how much they participated in the rest of the workout is anybody's guess.

Recently acquired defensive end Lawrence Jackson did not have his helmet and didn't go through any drills. Others who were inactive include tight end Dan Gronkowski and cornerbacks Paul Pratt, Aaron Berry and Jack Williams.